What are the vulnerabilities of MD5 and how can they be remedied? [duplicate]

Question

Possible Duplicate:
If MD5 is broken, what is a better solution?

What are the vulnerabilities in MD5 and what are some of the remedies for it? Also, what ares some of the concerns that a non-technical person should have and what are some of the concerns that a technical person should have as it relates to MD5?

Answer 1

Don't use MD5. Use SHA-2 (or higher) instead.

From here:

US-CERT of the U. S. Department of Homeland Security said MD5 "should be considered cryptographically broken and unsuitable for further use,..." and most U.S. government applications will be required to move to the SHA-2 family of hash functions after 2010.

MD5 considered harmful today